The half-life of strontium-90 is 28 years. Suppose we have a 52 mg sample.
(a) Find a function that models the mass m(t) remaining after t years.
m(t) =
(b) How much of the sample will remain after 60 years?
m(60) =
mg.
(c) How long will it take the sample to decay to a mass of 13 mg?
Your answer is
years.

i need a picture

step-by-step explanation:

let f (x ) is a function and c be a positive real number,   the graph of the function g (x ) = f (cx ) is represented as follows.

when, c > 1,   the function compresses it in the x - direction.

when, 0 < c < 1, the function stretches it.

the function is g ( x ) = (9x )2.

the heighest power of x in g ( x ) = (9x )2 is 2, so the parent function is square function.

the equation of parent function is f ( x ) = x 2 .

the function is g ( x ) = (9x )2 and the parent function is f ( x ) = x 2 .

so, the functions f and g have the following relationship.

g ( x ) = f ( 9x ).

compare the function g ( x ) = f ( 9x ) with g (x ) = f (cx ).

c = 9 ( > 1 ).

so, the function g (x ) = (9x )2 compresses it in the x - direction.

step-by-step explanation:

there is no answer sorry!

step-by-step explanation: